So I'm a fan of ice cubes or frozen bottles made from seltzer/soda water/club soda. It's cloudy and snowy without even trying, crunchy and easy on the teeth...the best of many worlds. I've been experimenting with a few and here is what I've found.

Best frozen seltzer: CANADA DRY It makes a very flaky soft soda ice. It melts in your mouth and gives you a reason for living.

Most dangerous seltzer: TRADER JOE'S While this makes a very decent soda ice, when you crack it, it pops something fierce. Pieces of flying ice has often gotten near my eye. Be careful freezing this brand.